if a^2+1/a^2=27 find a-1/a
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(a - 1/a) ^2 = a^2 + 1/a^2 - 2 × a × 1/a
= 27 - 2
= 25
(a - 1/a) ^2 = 5^2
a - 1/a = 5
= 27 - 2
= 25
(a - 1/a) ^2 = 5^2
a - 1/a = 5
Abhideepta:
Answer is right but your explanation is a bit wrong
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